Configring node js.

node_modules/core-js/modules/_object-sap.js

@@ -0,0 +1,10 @@
+// most Object methods by ES6 should accept primitives
+var $export = require('./_export')
+  , core    = require('./_core')
+  , fails   = require('./_fails');
+module.exports = function(KEY, exec){
+  var fn  = (core.Object || {})[KEY] || Object[KEY]
+    , exp = {};
+  exp[KEY] = exec(fn);
+  $export($export.S + $export.F * fails(function(){ fn(1); }), 'Object', exp);
+};